Optoelectronics is flourishing in Scotland with new firms spinning off from local universities every month. Valerie Jamieson finds out why it is boom time for the region
Read article: Laser jocks reach the big time
John Hegarty outlines his plans for physics at Trinity
Ultrashort laser pulses could probe processes that occur almost instantaneously
Clumps of sodium atoms buck the thermodynamic trend
Devices made from silicon dominate the microelectronics industry, so silicon should be the material of choice for anyone designing new electronic devices that will be integrated with microelectronic c...
Read article: Silicon lasers start to take shape
The internal energy levels of bulk silicon – in particular its ‘indirect bandgap’ – makes it emit light very inefficiently. Existing lasers are therefore based on ‘direct...
Kroemer and Alferov share the prize for their work on semiconductor heterostructures – devices that contain thin layers of different semiconductors, usually based on gallium arsenide, stacked on...
Special relativity prevents any object with mass travelling at the speed of light, and the principle of causality – the notion that the cause comes before the effect – is used to rule out ...
Stefan Hell and co-workers at Gottingen have adapted a technique known as fluorescence microscopy. In this form of microscopy the specimen is irradiated at a wavelength which excites either natural or...
In harmonic generation a short pulse of intense radiation is focussed into a gas of atoms. The laser-atom interactions are highly nonlinear, and a number of the input photons effectively combine to ge...
